Ohmite 43JR10 Equivalent & Substitute Parts

Part Overview

The Ohmite 43JR10 is a 100 mOhms ±5% 3W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is designed for applications requiring precision current-sensing and power dissipation in compact form factors. The part maintains active product status with 788 units in current inventory. Substitute parts are identified to address packaging preferences, compliance requirements, and supply chain flexibility while maintaining identical electrical and mechanical specifications.

Substiute Parts

43JR10

OhmiteIn Stock: 84143JR10 Datasheet

Current PartRFQ

43JR10E

OhmiteIn Stock: 98943JR10E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 43JR10E qualifies as a parametric equivalent based on matching electrical specifications: identical 100 mOhms resistance at ±5% tolerance, 3W power rating, wirewound composition, and ±90 ppm/°C temperature coefficient. Both parts share the same axial package configuration and physical dimensions (0.220" Dia x 0.594" L). The primary distinction lies in packaging format (tape/reel versus bulk) and compliance certifications. Substitution is valid when the application requirements align with the specified electrical and thermal parameters, and when packaging and compliance status are acceptable for the end-use environment.

Parameter Comparison

Engineering Selection Recommendations

Both the 43JR10 and 43JR10E are active products from Ohmite with identical electrical and mechanical specifications. Selection between these parts depends on compliance and packaging requirements:

The 43JR10E is RoHS Compliant and suitable for applications subject to RoHS directives or customer specifications requiring lead-free construction. The 43JR10 is RoHS non-compliant and appropriate for legacy systems or applications without RoHS requirements.

Packaging format differs: the 43JR10 uses standard packaging while the 43JR10E is supplied in bulk format. Choose based on assembly process requirements and inventory management practices.

The 43JR10E provides documented operating temperature range (-55°C ~ 275°C), while the 43JR10 does not specify this parameter. For applications requiring explicit temperature range documentation, the 43JR10E is the appropriate selection.

Both parts maintain identical resistance, tolerance, power rating, and thermal characteristics, ensuring functional interchangeability within the specified electrical parameters.

Frequently Asked Questions (FAQ)

Q: Can the 43JR10E replace the 43JR10 in existing designs?

A: Yes, provided that RoHS compliance is not a constraint. The 43JR10E matches all electrical and mechanical specifications. If the original design specifies RoHS non-compliant components, substitution requires design review and customer approval.

Q: What is the difference between standard and bulk packaging?

A: Standard packaging (43JR10) uses conventional tape/reel or tube formats suitable for automated assembly. Bulk packaging (43JR10E) supplies components in loose form, typically for manual assembly or custom packaging operations. Packaging selection depends on manufacturing process and handling requirements.

Q: Are these parts mechanically interchangeable?

A: Yes. Both parts share identical axial package configuration, physical dimensions (0.220" Dia x 0.594" L), and two-terminal construction. No mechanical modifications are required for substitution.

Q: Does the 43JR10E provide better performance than the 43JR10?

A: No. Both parts deliver identical electrical performance: 100 mOhms resistance at ±5% tolerance, 3W power rating, and ±90 ppm/°C temperature coefficient. The 43JR10E differs only in packaging format and compliance certifications.

Q: Which part should be selected for new designs?

A: For new designs, the 43JR10E is recommended due to RoHS compliance status and documented operating temperature range (-55°C ~ 275°C), providing clearer compliance documentation and environmental specifications.